20240418
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316
ACMOJ-2132.cpp
Normal file
316
ACMOJ-2132.cpp
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#include <cstdio>
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#define unlikely(x) __builtin_expect(!!(x), 0)
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struct char_reader {
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FILE *f;
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char *buf, *p1, *p2;
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int size;
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char_reader(FILE *fin, int bufsize = 1 << 16) {
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f = fin;
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size = bufsize;
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p1 = p2 = 0;
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buf = new char[size];
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}
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~char_reader() { delete[] buf; }
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inline int operator()() {
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return p1 == p2 && (p2 = (p1 = buf) + fread(buf, 1, size, f), p1 == p2)
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? EOF
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: *p1++;
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}
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};
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struct char_writer {
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FILE *f;
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char *buf, *p, *end;
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int size;
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char_writer(FILE *fout, int bufsize = 1 << 16) {
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f = fout;
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size = bufsize;
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buf = new char[size];
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p = buf;
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end = buf + bufsize;
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}
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~char_writer() {
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fwrite(buf, p - buf, 1, f);
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delete[] buf;
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}
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inline char operator()(char ch) {
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if (unlikely(end == p)) {
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fwrite(buf, end - buf, 1, f);
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p = buf;
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}
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return *p++ = ch;
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}
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};
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char_reader gch(stdin);
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char_writer wch(stdout);
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template <typename T>
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inline int read(T &t) {
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bool f = false;
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int ch;
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while (ch = gch(), !((ch >= '0' && ch <= '9') || ch == '-')) {
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if (ch == EOF) return 0;
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}
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t = 0;
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if (ch == '-') f = true, ch = gch();
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t = ch ^ 48;
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while (ch = gch(), ch >= '0' && ch <= '9')
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t = (t << 3) + (t << 1) + (ch ^ 48);
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if (f) t = -t;
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return 1;
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}
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inline int read(char &c) {
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c = 0;
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int ch;
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while (ch = gch(), (ch == ' ' || ch == '\n' || ch == '\r' || ch == '\t')) {
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if (ch == EOF) return 0;
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}
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c = ch;
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return 1;
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}
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inline int read(char *s) {
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int ch;
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while (ch = gch(), (ch == ' ' || ch == '\n' || ch == '\r' || ch == '\t')) {
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if (ch == EOF) return 0;
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}
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*s++ = ch;
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while (ch = gch(),
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!(ch == ' ' || ch == '\n' || ch == '\r' || ch == '\t') && ch != EOF)
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*s++ = ch;
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*s++ = 0;
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return 1;
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}
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inline int read(const char *s) { return read((char *)s); }
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inline int readline(char *s) {
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int ch;
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while (ch = gch(), (ch == ' ' || ch == '\n' || ch == '\r' || ch == '\t')) {
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if (ch == EOF) return 0;
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}
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*s++ = ch;
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while (ch = gch(), !(ch == '\n' || ch == '\r') && ch != EOF) *s++ = ch;
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*s++ = 0;
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return 1;
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}
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inline int readline(const char *s) { return readline((char *)s); }
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template <typename T>
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inline void write(T t) {
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int stk[20], cnt = 0;
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if (t == 0) {
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wch('0');
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return;
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}
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if (t < 0) {
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wch('-');
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t = -t;
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}
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while (t > 0) {
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stk[cnt++] = t % 10;
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t /= 10;
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}
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while (cnt) wch(stk[--cnt] + '0');
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}
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inline void write(char t) { wch(t); }
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inline void write(char *s) {
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while (*s) wch(*s++);
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}
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inline void write(const char *s) { write((char *)s); }
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#if __cplusplus >= 201103L
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template <typename T, typename... Args>
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inline int read(T &t, Args &...args) {
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return read(t) + read(args...);
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}
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template <typename T, typename... Args>
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inline void write(T t, Args... args) {
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write(t);
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write(args...);
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}
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#else
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template <typename A_t, typename B_t>
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inline int read(A_t &a, B_t &b) {
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return read(a) + read(b);
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}
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template <typename A_t, typename B_t, typename C_t>
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inline int read(A_t &a, B_t &b, C_t &c) {
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return read(a) + read(b) + read(c);
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}
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template <typename A_t, typename B_t, typename C_t, typename D_t>
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inline int read(A_t &a, B_t &b, C_t &c, D_t &d) {
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return read(a) + read(b) + read(c) + read(d);
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}
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template <typename A_t, typename B_t>
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inline void write(A_t a, B_t b) {
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write(a);
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write(b);
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}
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template <typename A_t, typename B_t, typename C_t>
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inline void write(A_t a, B_t b, C_t c) {
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write(a);
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write(b);
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write(c);
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}
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template <typename A_t, typename B_t, typename C_t, typename D_t>
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inline void write(A_t a, B_t b, C_t c, D_t d) {
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write(a);
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write(b);
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write(c);
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write(d);
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}
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#endif
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#include <algorithm>
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#include <cassert>
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#include <cstdio>
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#include <cstring>
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#include <vector>
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using namespace std;
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typedef long long LL;
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namespace __SA_IS {
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const int L_TYPE = 0;
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const int S_TYPE = 1;
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const int kMaxN = 3e5 + 10;
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const int kMaxChar = 1e6;
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int a[kMaxN * 2], sa[kMaxN * 2], typ[kMaxN * 2], c[kMaxChar * 2 + 5],
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p[kMaxN * 2], sbuc[kMaxChar + 5], lbuc[kMaxChar + 5], name[kMaxN * 2];
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inline int islms(int *typ, int i) { return !typ[i] && (i == 1 || typ[i - 1]); }
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int cmp(int *s, int *typ, int p, int q) {
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do {
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if (s[p] != s[q]) return 1;
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p++;
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q++;
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} while (!islms(typ, p) && !islms(typ, q));
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return (!islms(typ, p) || !islms(typ, q) || s[p] != s[q]);
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}
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void isort(int *s, int *sa, int *typ, int *c, int n, int m) {
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int i;
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for (lbuc[0] = sbuc[0] = c[0], i = 1; i <= m; i++) {
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lbuc[i] = c[i - 1] + 1;
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sbuc[i] = c[i];
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}
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for (i = 1; i <= n; i++)
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if (sa[i] > 1 && typ[sa[i] - 1]) sa[lbuc[s[sa[i] - 1]]++] = sa[i] - 1;
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for (i = n; i >= 1; i--)
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if (sa[i] > 1 && !typ[sa[i] - 1]) sa[sbuc[s[sa[i] - 1]]--] = sa[i] - 1;
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}
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void build_sa(int *s, int *sa, int *typ, int *c, int *p, int n, int m) {
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int i;
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for (i = 0; i <= m; i++) c[i] = 0;
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for (i = 1; i <= n; i++) c[s[i]]++;
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for (i = 1; i <= m; i++) c[i] += c[i - 1];
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typ[n] = 0;
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for (i = n - 1; i >= 1; i--)
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if (s[i] < s[i + 1])
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typ[i] = 0;
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else if (s[i] > s[i + 1])
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typ[i] = 1;
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else
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typ[i] = typ[i + 1];
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int cnt = 0;
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for (i = 1; i <= n; i++)
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if (!typ[i] && (i == 1 || typ[i - 1])) p[++cnt] = i;
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for (i = 1; i <= n; i++) sa[i] = 0;
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for (i = 0; i <= m; i++) sbuc[i] = c[i];
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for (i = 1; i <= cnt; i++) sa[sbuc[s[p[i]]]--] = p[i];
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isort(s, sa, typ, c, n, m);
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int last = 0, t = -1, x;
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for (i = 1; i <= n; i++) {
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x = sa[i];
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if (!typ[x] && (x == 1 || typ[x - 1])) {
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if (!last || cmp(s, typ, x, last))
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name[x] = ++t;
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else
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name[x] = t;
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last = x;
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}
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}
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for (i = 1; i <= cnt; i++) s[n + i] = name[p[i]];
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if (t < cnt - 1)
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build_sa(s + n, sa + n, typ + n, c + m + 1, p + n, cnt, t);
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else
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for (i = 1; i <= cnt; i++) sa[n + s[n + i] + 1] = i;
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for (i = 0; i <= m; i++) sbuc[i] = c[i];
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for (i = 1; i <= n; i++) sa[i] = 0;
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for (i = cnt; i >= 1; i--) sa[sbuc[s[p[sa[n + i]]]]--] = p[sa[n + i]];
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isort(s, sa, typ, c, n, m);
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}
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} // namespace __SA_IS
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void SA_IS(int *s, int n, int *sa, int *rk) {
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using namespace __SA_IS;
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for (int i = 1; i <= n; i++) a[i] = s[i];
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a[++n] = 0;
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build_sa(a, sa, typ, c, p, n, kMaxChar);
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n--;
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for (int i = 1; i <= n; i++) sa[i] = sa[i + 1];
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for (int i = 1; i <= n; i++) rk[sa[i]] = i;
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}
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void computeHeight(int *s, int n, int *sa, int *rk, int *height) {
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int k = 0;
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for (int i = 1; i <= n; i++) {
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if (rk[i] == 1) {
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height[rk[i]] = 0;
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continue;
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}
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if (k > 0) { k--; }
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int j = sa[rk[i] - 1];
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while (i + k <= n && j + k <= n && s[i + k] == s[j + k]) { k++; }
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height[rk[i]] = k;
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}
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}
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const int kMaxN = 3e5 + 10;
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int n;
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int str[kMaxN << 2], sa[kMaxN << 2], rnk[kMaxN << 2], height[kMaxN], res[kMaxN];
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const int kInf = 0x3f3f3f3f;
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int main() {
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#ifdef local
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freopen("pro.in", "r", stdin);
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#endif
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read(n);
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for (int i = 1; i <= n; i++) read(str[i]);
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SA_IS(str, n, sa, rnk);
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computeHeight(str, n, sa, rnk, height);
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vector<int> sa2, height2;
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sa2.push_back(-1);
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height2.push_back(-1);
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sa2.push_back(sa[1]);
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height2.push_back(0);
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int current_shared_length = kInf;
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for (int i = 2; i <= n; i++) {
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current_shared_length = min(current_shared_length, height[i]);
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if (sa[i] < sa2.back()) {
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sa2.push_back(sa[i]);
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height2.push_back(current_shared_length);
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current_shared_length = kInf;
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}
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}
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vector<pair<int, int>> stk;
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for (int i = sa2.size() - 1; i >= 1; i--) {
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if (i == sa2.size() - 1) [[unlikely]] {
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stk.push_back(make_pair(sa2[i], n + 1 - sa2[i]));
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int L = 1;
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if (i - 1 >= 1) L = n + 1 - sa2[i - 1] + 1;
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for (int j = L; j <= n + 1 - sa2[i]; j++) res[j] = sa2[i];
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continue;
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}
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while (stk.size()) {
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int h = height2[i + 1];
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if (stk.back().second < h) break;
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if (stk.size() >= 2 && (stk.end() - 2)->second >= h)
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stk.pop_back();
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else {
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stk.back().second = h;
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break;
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}
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}
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stk.push_back(make_pair(sa2[i], n + 1 - sa2[i]));
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int L = 1;
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if (i - 1 >= 1) L = n + 1 - sa2[i - 1] + 1;
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for (int j = n + 1 - sa2[i], p = stk.size() - 1; j >= L; j--) {
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while (p > 0 && stk[p - 1].second >= j) p--;
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res[j] = stk[p].first;
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}
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}
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write(res[1]);
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for (int i = 2; i <= n; i++) write(' ', res[i]);
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write("\n");
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return 0;
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}
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